Question: When did Newfoundland and Labrador have a population of 519716 people?
Paraphrase: What year did Labrador and Newfoundland have 519716 citizens?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q2003 p:P1082 ?s . ?s ps:P1082 ?x filter(contains(?x , '519716.0')) . ?s pq:P585 ?value}